Midinfrared Tunable Laser with Noncritical Frequency Matching in Box Resonator Geometry

Kunpeng Jia, Xiaohan Wang, Jian Guo, Yihao Li, Xin Ni, Pengfei Fan, Qiqi Shen, Tao Wang, Xinjie Lv, Gang Zhao, Shu-Wei Huang, Xueming Yang, Zhenda Xie, and Shi-ning Zhu
Phys. Rev. Lett. 127, 213902 – Published 18 November 2021

Abstract

Monolithic optical parametric oscillators extend laser frequencies in compact architectures, but normally guide and circulate all pump, signal, and idler beams. Critical frequency matching is raised among these resonances, limiting operation stability and continuous tuning. Here, we develop a box resonator geometry that guides all beams but only resonates for signal. Such noncritical frequency matching enables 227 GHz continuous tuning, with sub-10 kHz linewidth and 0.43 W power at 3310 nm. Our results confirm that monolithic resonator can be effectively used as a tunable laser including midinfrared wavelength, as further harnessed with methane fine spectral measurement at MHz accuracy.

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  • Received 26 March 2021
  • Accepted 15 October 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.213902

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Kunpeng Jia1,*, Xiaohan Wang1,*, Jian Guo1, Yihao Li1, Xin Ni1, Pengfei Fan1, Qiqi Shen3, Tao Wang4, Xinjie Lv1, Gang Zhao1, Shu-Wei Huang2, Xueming Yang3,4, Zhenda Xie1,†, and Shi-ning Zhu1,‡

  • 1National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, College of Engineering and Applied Sciences, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 2Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, Colorado 80309, USA
  • 3State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
  • 4Department of Chemistry, College of Science, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China

  • *These authors contributed equally to this work.
  • xiezhenda@nju.edu.cn
  • zhusn@nju.edu.cn

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Issue

Vol. 127, Iss. 21 — 19 November 2021

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